Acute renal failure caused by leptospirosis.

Three patients with severe leptospirosis leading to anuria and treated with haemodialysis are reported. One patient died. The pathomechanism and the underlying pathological and histological changes of the renal failure are discussed. It is stressed that the clinical diagnosis of leptospirosis is often difficult, as other infectious diseases,first of all infectious hepatitis, frequently present the same symptoms.